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Question
A 47Ω resistor is in series with an inductive reactance of 120Ω across an ac source. The impedance, expressed in polar form, is
Options:
A .  129 angle 31.4°
B .  129 angle 68.6°
C .  47 angle 68.6°
D .  120 angle 68.6°
Answer: Option B
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